The building sector contributes up to 40% of greenhouse gas emissions, mostly
from energy use during the life time of buildings. Identifying opportunities
to reduce these emissions has become a priority in the global effort to reduce
climate change. "Buildings and Climate Change"provides an overview
of current knowledge about greenhouse gas emissions from buildings, and presents
opportunities for their minimisation.

The report describes sources and distribution of greenhouse gas emissions
across different stages and functions of buildings, and the technical measures
available for their reduction. Examples of policies and tools applied in different
countries to improve energy efficiency in buildings are presented, as are selected
case studies on initiatives to reduce energy use in buildings. This report also
reviews the relevance of some regional and international agreements to the building
sector to curb greenhouse gas emissions, in particular the Kyoto Protocol. A
number of recommendations on how to progress the knowledge and understanding
of this issue, and how to encourage action to reduce greenhouse gas emissions
from buildings are also proposed.

This report is a product of the UNEP Sustainable Buildings and Construction
Initiative - SBCI.